200002021091 has 2 divisors, whose sum is σ = 200002021092. Its totient is φ = 200002021090.

The previous prime is 200002020973. The next prime is 200002021111. The reversal of 200002021091 is 190120200002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200002021091 - 2¹⁴ = 200002004707 is a prime.

It is not a weakly prime, because it can be changed into another prime (200002021691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100001010545 + 100001010546.

It is an arithmetic number, because the mean of its divisors is an integer number (100001010546).

Almost surely, 2^200002021091 is an apocalyptic number.

200002021091 is a deficient number, since it is larger than the sum of its proper divisors (1).

200002021091 is an equidigital number, since it uses as much as digits as its factorization.

200002021091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 200002021091 its reverse (190120200002), we get a palindrome (390122221093).

The spelling of 200002021091 in words is "two hundred billion, two million, twenty-one thousand, ninety-one".